Randomized Controlled Trial
Increasing the injection volume by dilution improves the onset of motor blockade, but not sensory blockade of ropivacaine for brachial plexus block.
Eur J Anaesthesiol. 2003 Jan 1;20(1):21-5.
Randomized Controlled Trial
Ultrasound-guided axillary brachial plexus block with 20 milliliters local anesthetic mixture versus general anesthesia for upper limb trauma surgery: an observer-blinded, prospective, randomized, controlled trial.
Anesth. Analg. 2009 Jul 1;109(1):279-83.
Randomized Controlled Trial
Efficacy of ultrasound-guided axillary brachial plexus block: a comparative study with nerve stimulator-guided method.
Chang Gung Med J. 2005 Jun 1;28(6):396-402.